Mill



May 22, 1923.

D. D. BARE MILL s Sheets-Shet 1 Filed May 1'7, 1920 INVENTOR ATTOR NEYWITNESS:

1,456,353 D. D. BARE MILL Filed May 1'7, 1920 3 Sheets-Sheet 2 W a m. M.J v w w 4 mm M 3 a a a 4 5 .5

2 a w .HMHHHHH. HHHHHH H. M m I I INVENTOR ATTORNEY W 6 A 7 Wa 2% D. D.BARE May 22; 1923.

MILL

Find My '17. 1920 3 Sheets-Sheet 5 ATTORNEY WITNBS:

Patented May 22, 1923.

TENT OFFICE.

DARIUS 1). BABE, or vv'Esr JEFFERSON, NORTH "CAROLINA.

' MILL.

Application filed May 17,

To all whom it may concern: Be it known that DARIUS D. BARE, a citizenof the United States, residinga't West Jefferson, in the countyofAsheand State of North Carolina, have invented new and usefulImprovements in Mills, of which the following is a specification.

The invention relates to mills and resides in the provision of apivotally mounted trough, for receiving the grain from the hopper, andconveying the latter to a feed chute, with means for vibratingthetrough, causing the latter to positively discharge said contents intothe feed chute.

A further object of the invention, resides in the novel construction andarrangement of parts, by means of which the burr stones are rotated inopposite directions; and the construction of the means for conveying thegrain from the trough to the working faces of the burr stone.

The nature and advantages of the invention will be better understoodwhen the following detail description is read in connection with theaccompanying drawings,.the invention residing in the construction,combination and arrangement of parts as claimed.

In the drawings forming part. of this specification like numerals ofreference indicate similar parts in the several views, and whereinFigure 1 is a side elevation.

Figure 2 is a vertical sectional view through the mill.

Figure 3 is a sectional view of a modified form of the invention.

' Figure 4 is a plan view of the adjusting screw and its associatedparts.

Referring to the drawings in detail, 10 indicates a supporting base,upon which is mounted a. receptacle for housing the burr stones, andtheir associated parts, the receptacle comprising the separable sections11 and 12 respectively, which permits access being had to the interiorof the receptacle when the occasion requires. These sections aredetachably held together in any suitable manner, preferablyv by means ofthe fastening element 13. A shaft 14 passes through the opposed sides ofthe receptacle, the shaft being journalled in bearings 15 arranged atone side of the receptacle and mounted upon the supporting base 10. Abelt pulley 16 iscarried by one end of the 'shaft 14 so that the lattermay be driven from a 1920. Serial No. 382,024.

suitable motor as will be readilyunderstood. Fixedupon the Ishaft 14 isthe burrstone 17, which rotates with the shaft, the cooperating burrstone" 18 being mounted upon the shaft 14 for rotation in an oppositedi-.

rection to the direction of rotation of the burr stone 17. The burrstone '18 is car, ried by a sleeve 19 having-a diameter greater than thediameter of the shaft'14, although the sleeve is journalled upon theshaft 14 as at 20. ,The sleeve is also shaped to provide a shoulder21,against which suitable packings 22 are arranged to bear, this packingbeing arranged in the sleevewand surrounding the shaft 14. Radiatingfrom the sleeve 19 and secured'thereto in any suit-' able manner, arearms'24, engaging against one side of the burr stonelS, the arms beingfurther designed to engage the periphery of thiselement at spaced pointsas at 25. Mounted upon the axle 14 is a hub 26, from which radiates arms27similar in construction to the arms 24, the arms 27 not engaging orbearing against the burr stone 17. The offset portions 28 of the arms 27are however, detachably connected with the similar portions 25 of thearms 24, the arms 24 and 27 united-1y defininig a frame-like structureto strengthen and reinforce the mechanism. Manifestly, the frame thus.de-.

fined by the arms 24 and. 27 is susceptible plurality of intake openingsor slots 32 for the grain or the like, which isfed to these slots in amanner to be hereinafter *de scribed. The grain enters the the spacebetween the working faces of sleeve. 19 thru the slots 32 and is forcedinto the burr stones l7 and 18 respectively, by

means of a feed screw 33 carriedbythe'shaft 14 and arranged within thesleeve 19.

- Attached to the shaft 14 for rotation therewith is a bevel gear 34,which meshes I with idler gears 35, the latterin turn mesh ing with abevel gear 36 carried by the sleeve 19. By reason of this construction,and arrangement of parts it is apparent'that when the shaft =14 isrotated to rotate the burr stone 17*, therewith, the gears 34, 35

and 36 cooperate to impart rotary movement to the'burr stone 18, in adirection opposite to the direction of rotation of the burr stone 17,thereby increasing the working capacity of the mill.

Supported upon the receptacle by means of the standards 38 is a hopper39, the neck 40 of the hopper is disposedabove the trough 41 whichreceives the grain or other material from the hopper 39. The trough isof such length as to terminate at one side of the receptacle, the troughhowever communicates with a feed chute 42 arranged at one side of thereceptacle 'and through which the sleeve 19 projects as shown. The grainor other material is received from the hopper 39 by the trough 41, anddeposited into the feed chute 42, which conveys the grain or the likethrough the intake openings or slots 32 of the sleeve 19. The grainis'conveyed to the space between the working faces of the burr stone inthe manner above stated. For the purpose of controlling the discharge ofgrain from the hopper 39 to the trough, I provide a tubular member 44which is slidably mountedupon the neck 40 of the hopper andnormallyrests uponthe bottom of the trough 41. Rising from thereceptacle is a standard 45 upon which is pivoted as at 46, ahorizontally disposed arm 47, which controls the adjustment of thetubular member 44. The arm 47 is bifurcated as at .48 toreceive thetubular member 44 with which it is pivotally associated. The arm 47 hasa threaded opening 49 which receives a threaded element 50, the latterbeing provided with a handwheel 51 at one end; Consequently, by turningthe hand wheel 51 in one .direction, the arm 47 is moved upon its pivot46 to elevate a tubular member 44 away from the bottom of the trough 41,thus allowing the continuous flowof grain to feed from the hopper 39-upon the trough-41. The particular amount of grain allowed to feed fromthe hopper 39 uponthe trough is regulated bythedegree of elevation ofthe tubular valve 44, or in other words the amount of space between thetubular valve 44 and the bottom of the trough 41. This is controlled bymeans of the threaded element as will be readily understood.

The trough 41 is pivotally mounted as at 53 for vertical movement, meansbeing provided to vibrate the trough to insure the discharge of itscontents into the feed chute 42. For this purpose I provide a cam54 forintermittently actuating or elevating a rod 55 which is connected at itsupper end, as at 56, with a rocker arm 57 pivoted upon the receptacle asat 58 and connected with the trough 41. The rod 55 operates thru a guide59- which is secured tothe feed chute. A spring 60 encircles the rod 55and has one'end secured to the guide 59 and its opposite end secured tothe rod 55 so that when the rod is-elevated, the spring 60 is placedunder tension to lower the rod 55 after the highest point or cam movesfrom beyond the adjacent end of the rod :55. In consequence, the trough41 is continuously vibrated to shake and move the grain containedtherein in the direction of the discharge end of the trough into thefeed working faces of the burr stones, into-the chute v61 which conveysthe grain, to its{ proper destination.

In Figures 3 and 4 I have shown a modi fied form of the inventionwherein the hopper is indicated at 65 and provided with 5% an internalshoulder 661113011 which is,-re mova'bly supported a screen 67 for thepurpose of separating pieces of cob or the like from the grain.Embracing the neck 68 of the, hopper, is a sleeve-like member 69 havingslots 70 for the reception of the lugs or pins 71 projecting from the.neck of the hopper as shown. This construction allows for the vibrationof. the trough 72 in the manner-above described when the parts are innormal position., The trough 72 of course receives the material from thehopper 65, and conveys the same to the feed chute 73. In this form ofthe invention, I regulate the discharge of the grain :1;

from the hopper 39 to. the feed chuteby means of an adjusting screw74adjustable through the brackets 75 securedto the. recep-tacle 76.Threaded on the screw'?74 is a collar 77 which moves longitudinally of wthe screw when the v latter is rotated, and pivotally associated withthis collar and with one end of the trough 7 2, is a link 78 manifestly,when the collar is moved forwardly on the screw, the trough 72is-elevated, and when the collar 77 moves rearwardly of the screw thetrough 72 is lowered. Consequently, the space between the bottom of thetrough 72 and the sleevelike member 69 can be varied to regulate thedis- I charge of grain from the hopper 65- .to the feed chute 73. Aportion of the bottom of the trough 72 is formed by a foraminatedmaterial 79 constituting-a seive for separating fine thrash fromforeign, material from the grain, this foreign material passing throughthe seive and being conveyed rearwardly away from the feed chute 73 bymeans of a chute v80 forming a part of the trough arranged beneath theforaminated material 79. The trough is vibrated in this form of theinvention the same as above described in connection with the preferredform. I

\Vhile it is believed that from the foregoing description, the natureand advantages of the invention will be readily apparent, I desire tohave it understood that I do not limit myself in this connection andthat such changes may be resorted to when desired as fall within thescope of what is claimed.

Havingthus described my invention what I claim as new is a p In a mill,the combination with a vertically disposed hopper and chute, of a-feedtrough disposed horizontally therebetween with one end underlying thesaid hopper and its other end extending into the said chute, suspensionmeans associated with the said chute for supportingone end of the saidtrough and being operable to impart vibratory movement through (the saidtrough,

a horizontally disposedadjusting screw rotatably supported below thehopper end,

of the said trough, and a link having one end pivotally supporting thehopper end of the trough: and having its other end con- V 'strainedtomove along said' 'screw for adjusting the inclination of the saidtrough.

In testimony whereof I afiix my signature.

DARIUS D. BARE}

